Green dust-fixing agent and preparation method thereof

A green, cellulose ether-based technology, applied in chemical instruments and methods, and other chemical processes, can solve the problems of low dust-fixing efficiency of water sprinkling, complicated production process, and complex process, and achieve easy industrial production and large-scale promotion, Efficient capture and fixation, and efficient suppression of dust

Active Publication Date: 2018-12-18
北京英华高科技环保有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Water power dust reduction and solidification is the most common and easiest dust removal method at present, but the surface tension of water is large, the infiltration effect on dust is poor, and it is easy to volatilize. It is difficult to meet the current environmental protection needs
[0004] In recent years, many countries have made a lot of research progress in dust-fixing agents, but these products have problems such as refractory degradation, high cost, and secondary pollution to varying degrees.
CN200810057756.4 prepares a dust-fixing agent with silica gel as the main raw material, and the proportion of silica gel in the raw material is more than 80%. This method mainly has the problem of difficult degradation; CN201010204156.3 synthesizes water-soluble polymer, propylene glycol benzene Ether, polyvinyl alcohol, polyacrylic acid ammonium salt and water prepare dust suppressant, and this method has the problem of secondary pollution; , sodium fluoride, dibutyl phthalate, bentonite and water to make a dust suppressant, the process is complicated, and there is also the problem of secondary pollution; CN201110160998.8 uses natural latex, natural plant fiber, glycerol, and surfactant and water to prepare dust suppressant, the cost is higher, and there is also the problem of refractory degradation; CN106350014A makes dust suppressant with hydrolyzed animal protein, sodium lauryl sulfate, hydroxyethyl cellulose, silicone resin polyether emulsion, etc., the method There are problems of complex production process and high cost

Method used

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  • Green dust-fixing agent and preparation method thereof
  • Green dust-fixing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment provides a green dust-fixing agent. The raw material components include: 10 parts by weight of pregelatinized starch, 5 parts by weight of dextrin, 1 part by weight of xanthan gum, 10 parts by weight of carboxymethyl cellulose, and 10 parts by weight of sucrose , 500 parts by weight of water.

[0026] The green dust-fixing agent is prepared by the following method:

[0027] (1) Take pre-gelatinized starch, dextrin, xanthan gum, carboxymethyl cellulose, and sucrose in sequence and mix thoroughly to obtain a mixed powder; the average particle size of the pre-gelatinized starch is 0.15mm, and the viscosity is 400mpa·s; The DE value of dextrin is 17%, the solubility is 99.5%; the average particle size of xanthan gum is 0.11mm, the viscosity is 1650mpa s; the average particle size of carboxymethyl cellulose is 0.12mm, the viscosity is 800mpa s;

[0028] (2) Add water to the mixed powder, and stir at 15°C and 120rpm for 45min to make it fully mixed evenly to ...

Embodiment 2

[0030] This embodiment provides a green dust-fixing agent. The raw material components include: 60 parts by weight of pregelatinized starch, 5 parts by weight of dextrin, 5 parts by weight of xanthan gum, 5 parts by weight of hydroxypropyl methylcellulose, 80 parts by weight of sucrose parts by weight, 3000 parts by weight of water.

[0031] The green dust-fixing agent is prepared by the following method:

[0032] (1) Get pregelatinized starch, dextrin, xanthan gum, hydroxypropyl methylcellulose, sucrose successively, fully mix uniformly, obtain mixed powder; The average particle diameter of described pregelatinized starch is 0.15mm, The viscosity is 400mpa s; the DE value of dextrin is 17%, the solubility is 99.5%; the average particle size of xanthan gum is 0.11mm, the viscosity is 1650mpa s; the average particle size of hydroxypropyl methylcellulose is 0.14mm , the viscosity is 1300mpa s;

[0033] (2) Add water to the mixed powder, and stir at 60°C and 180rpm for 45min to...

Embodiment 3

[0035] This embodiment provides a green dust-fixing agent. The raw material components include: 30 parts by weight of pregelatinized starch, 10 parts by weight of dextrin, 1 part by weight of xanthan gum, 5 parts by weight of hydroxyethyl cellulose, and 20 parts by weight of sucrose , 1000 parts by weight of water.

[0036] The green dust-fixing agent is prepared by the following method:

[0037] (1) Get pregelatinized starch, dextrin, xanthan gum, hydroxyethyl cellulose, sucrose successively, fully mix uniformly, obtain mixed powder; The average particle diameter of described pregelatinized starch is 0.15mm, viscosity is 400mpa s; the DE value of dextrin is 17%, the solubility is 99.5%; the average particle diameter of xanthan gum is 0.11mm, the viscosity is 1650mpa s, the average particle diameter of hydroxyethyl cellulose is 0.12mm, the viscosity is 1500mpa s;

[0038] (2) Add water to the mixed powder, and stir at 120 rpm for 80 min at 45°C to make it fully mixed evenly ...

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Abstract

The invention relates to a green dust-fixing agent and a preparation method thereof. The green dust-fixing agent is prepared by using pregelatinized starch, dextrin, xanthan gum, cellulose ether derivatives, sucrose and water as raw materials with a proper weight ratio. A compounded mixture of pregelatinized starch, dextrin, xanthan gum and cellulose ether derivatives is used as a main binder, andsucrose is used as an auxiliary binder, the colloidal properties of the plant polysaccharide is fully utilized, a stable multi-point cross-linked network structure is formed between dust and soil particles, efficient capture and fixation of dust and soil can be realized, dust-fixing effect is good, long dust-fixing period is long, and the agent has certain erosion resistance; the product is green, safe, environmentally friendly, and non-polluting, and cannot not cause secondary pollution; the method has the advantages of simple construction and convenient operation, and can meet the needs ofdifferent dust-fixing environments such as building site construction, mine and industrial manufacturing; the preparation cost is low, the preparation process is simple, and the method are suitable for industrial production and scale promotion.

Description

technical field [0001] The invention relates to the technical field of dust-fixing agents, in particular to a green dust-fixing agent and a preparation method thereof. Background technique [0002] Dust control is an important issue in the prevention and control of air pollution. Many dust problems are caused by man-made emissions, such as dust from construction sites, mining dust, road transportation dust, and industrial production dust. [0003] Water power dust reduction and solidification is the most common and easiest dust removal method at present, but the surface tension of water is large, the infiltration effect on dust is poor, and it is easy to volatilize. Difficult to meet the needs of the current environmental protection. [0004] In recent years, many countries have made a lot of research progress in dust-fixing agents, but these products have problems such as refractory degradation, high cost, and secondary pollution to varying degrees. CN200810057756.4 prepa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/22
CPCC09K3/22
Inventor 冯拥军张毅韩瑛
Owner 北京英华高科技环保有限公司
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